CN114406094A

CN114406094A - Different-direction displacement and protection device in stamping die

Info

Publication number: CN114406094A
Application number: CN202210090809.2A
Authority: CN
Inventors: 陈剑; 殷祚海; 郑纲
Original assignee: Shanghai Zhongda Automobile Comping Co ltd
Current assignee: Shanghai Zhongda Automobile Comping Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-04-29
Anticipated expiration: 2042-01-26
Also published as: CN114406094B

Abstract

The invention discloses a heterodromous displacement and protection device in a stamping die.A current product which is formed by a first die is grabbed and translated to a second displacement mechanism through a first displacement mechanism, and meanwhile, a previous product which is laterally punched by the second die on the second displacement mechanism is grabbed and translated to the outside of the second displacement mechanism for releasing; the second shifting mechanism is used for descending to move a previous product to a second die for lateral punching, and lifting the previous product subjected to lateral punching back to wait for being grabbed and translated together with the current product by the first shifting mechanism; the second shifting mechanism is provided with a detection unit for detecting whether the current product moves and whether the current product moves in place; the control unit judges that the current product is moving according to the first feedback signal of the detection unit, and judges that the current product is moving in place according to the second feedback signal of the detection unit. The invention can realize continuous production among different moulds, protects the moulds from being damaged, and has simple device and convenient installation.

Description

Different-direction displacement and protection device in stamping die

Technical Field

The invention relates to the technical field of die processing, in particular to a device for heterodromous displacement and protection in a stamping die.

Background

At present, the stamping hardware is widely applied in the manufacturing industry of automobiles and the like. Automobiles are typically fitted with a large number of hardware pieces that often need to be made by designing a continuous die (progressive die).

However, for some hardware with lateral punching, the product cannot be continuously punched out at one time only by means of a single-pair forming continuous die, and the whole structure punching process of the product can be completed only by matching with other shifting punching dies.

Referring to fig. 1, a layout structure of a conventional hat-shaped hardware product 10 on a stamping material belt 1 is shown. The cap-shaped product 10 has a cylindrical structure with both ends open, which is inclined toward the outside of the material tape, and a flange structure (brim) which is wound around the lower end of the cylindrical structure outward, and is provided with a through hole 101 on each of the front and rear sides of the cylindrical structure in the direction of the material tape.

The product can be formed into a cylinder body and a flange structure on the cylinder body through a pair of continuous forming dies and a step-by-step forming mode. Then, a through hole is processed on the cylinder through a pair of lateral punching dies.

In the prior art, the formed product is directly subjected to lateral punching (through hole 101) on the material belt after the last process of the forming continuous die is difficult to achieve, so that the formed product needs to be cut and separated from the material belt through the forming continuous die, and then the separated single product is subjected to lateral punching to form a finished product. In order to maintain the production continuity, it is necessary to design a counter-directional shift and protection device for connecting the continuous forming die and the lateral punching die, so as to transfer the formed product separated from the material belt to the punching process of the lateral punching die through the counter-directional shift for lateral punching, ensure the shift precision, protect the die and prevent the die from being damaged due to the shift not in place.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a device for heterodromous displacement and protection in a stamping die.

One technical solution of the present invention to achieve the above object is:

a kind of heterodromous shift and protective device in the stamping die, including:

the first shifting mechanism is used for simultaneously grabbing a current product which is positioned at a first position and formed by a first die and a previous product which is positioned at a second position and formed by the first die and laterally punched by a second die through ascending, translating and descending, and synchronously translating to the second position and the third position respectively for releasing;

the second shifting mechanism is used for moving the previous product on the second position to a fourth position to perform lateral punching by the second die by descending when the first shifting mechanism ascends, and moving the previous product after lateral punching on the fourth position back to the second position by ascending before the first shifting mechanism descends to wait for the first shifting mechanism to grab and translate;

the detection unit is arranged on the second displacement mechanism and used for detecting whether the current product moves and whether the current product moves in place;

and the control unit is used for judging that the current product is moving according to a first feedback signal of the detection unit when the first shifting mechanism translates the grabbed current product and the grabbed previous product, and judging that the current product is at the position moved to the position in the second position according to a second feedback signal of the detection unit.

Further, the first displacement mechanism comprises a lifting sub-mechanism and a translation sub-mechanism arranged on a lifting motion part of the lifting sub-mechanism; the translation sub-mechanism is provided with a translation movement part, and the translation movement part is sequentially provided with a first grabbing unit and a second grabbing unit which are respectively used for grabbing the current product and the previous product.

Furthermore, the lifting sub-mechanism comprises a lifting cylinder, the lifting cylinder is provided with a lifting cylinder rod, and the lifting cylinder rod is the lifting motion part; the translation sub-mechanism comprises a translation cylinder, the translation cylinder is provided with a translation cylinder rod, and the translation cylinder rod is the translation motion part.

Further, openings are formed in the upper ends of the current product and the previous product, the first grabbing unit and the second grabbing unit respectively comprise grabbing rods which are longitudinally and correspondingly arranged on the translational movement portion, the grabbing rods are used for respectively extending into the openings of the current product and the previous product when the lifting movement portion descends, hooking the current product and the previous product transversely to grab when the lifting movement portion translates along with the translational movement portion, and disengaging the current product and the previous product to release when the lifting movement portion ascends to translate to be located on the second position and the third position respectively.

Further, the second displacement mechanism comprises a lifting platform, and the lifting platform is used for carrying out up-and-down position conversion between the second position and the fourth position on the previous product on the surface of the lifting platform through lifting.

Further, the detection unit comprises a first sensor, a second sensor and a third sensor which are arranged on the lifting platform, the first sensor is used for detecting the movement of the current product and generating the first feedback signal when triggered, and the second sensor and the third sensor are used for detecting the movement of the current product in place and generating the second feedback signal when simultaneously triggered.

Further, when the first displacement mechanism is in a state of translating to the third position direction, and the control unit does not acquire the first feedback signal, shutdown is triggered.

Further, when the first displacement mechanism is in a state where the translation to the third position direction is terminated, and the control unit does not acquire the second feedback signal, a stop is triggered.

Furthermore, a guide structure is arranged on the surface of the lifting platform and used for guiding the current product and the previous product which are translated on the surface of the lifting platform.

Further, the first sensor, the second sensor and the third sensor comprise a first proximity switch, a second proximity switch and a third proximity switch which are arranged at positions below the surface of the lifting platform.

Compared with the prior art, the invention has the following advantages:

(1) through setting up the first shifting mechanism, the second shifting mechanism that make incorgruous aversion and protection device and the production beat phase-match of first mould, second mould for the product can carry out the side direction through incorgruous aversion after the shaping on first mould on the second mould after, has realized product continuous production, is showing and is improving efficiency.

(2) Through set up position detecting element on product incorgruous aversion route, can detect whether the product is correctly removed to and whether being removed and target in place, whether can correctly judge production normal, solved mould reliability problem, effectively protected the mould, and realized most basic artificial intelligence.

(3) The air cylinder is adopted to drive the product to shift in different directions, the shifting position precision of the product can be improved, the combination of the plurality of sensors is matched, whether the product is shifted or not and whether the product is moved in place or not can be accurately judged, and the safety of the die is effectively protected.

(4) Through the reasonable arrangement of the action modes and the sequence between the first shifting mechanism and the second shifting mechanism, the mutual interference between different products during the movement can be avoided, and the automatic control of the production is realized.

(5) The device is simple, is convenient to install, can combine different function moulds on line, can correspondingly adjust the position of the sensor according to the morphological characteristics of a product, and can further update a program through the control unit for optimization.

Drawings

Fig. 1 is a schematic layout structure diagram of a conventional hat-shaped hardware product.

Fig. 2 is a schematic structural diagram of a device for shifting and protecting in different directions in a stamping die according to a preferred embodiment of the invention.

Fig. 3 is a schematic diagram illustrating an operation principle of a first shifting mechanism according to a preferred embodiment of the present invention.

Fig. 4-5 are schematic structural views of a lifting platform according to a preferred embodiment of the invention.

Detailed Description

In order that the technical solution of the invention may be better understood, the invention will now be described in detail by means of specific embodiments.

Please refer to fig. 2. Taking the present invention as an example of the application to the machining of the conventional hat-shaped hardware product 10 shown in fig. 1, the anisotropic displacement and protection device 30 of the present invention may be disposed between a first die 20 and a second die 40. The first die 20 may be, for example, a continuous forming die (progressive die), and the second die 40 may be, for example, a lateral punching die. The first die 20 is provided with a die step-by-step forming and stamping process structure corresponding to the step-by-step forming structure of the cap-shaped product 10. The product 10 located at the foremost end of the strip 1 is cut off at the last step of the first die 20, separated from the strip 1, and located at the first position at the last step of the first die 20. The second die 40 may be located outside the last pass of the first die 20 and correspond to the fourth position, for example, for laterally punching the hole 101 from the side of the product 10 to the product 10 lowered from the second position to the fourth position.

The first and second dies 20 and 40 may be implemented using existing forming dies and side-piercing dies, or other combinations of dies that require separate machining to form the final product. The invention is not limited.

Please refer to fig. 2. The invention relates to a device 30 for shifting and protecting in different directions in a stamping die, which comprises: a first displacement mechanism 31, a second displacement mechanism 32, a detection unit 33 (refer to fig. 4), and a control unit.

The first shifting mechanism 31 is configured to, through a combined action of ascending, translating and descending, grasp and translate one product 10 (current product 11) that is located at a first position of the first mold 20 and formed and cut by the first mold 20 to a second position of the second shifting mechanism 32. The first displacement mechanism 31, while gripping the current product 11 located in the first position, also grips another product 10 that is currently located in the second position (i.e., the previous product 12 translated from the first position to the second position prior to the current product 11) and translates along the second position of the second displacement mechanism 32 to a third position located outside the second displacement mechanism 32 to make room for the simultaneous translation of the current product 11 to the second position. The previous product 12 has been shaped by the first die 20 before being moved from the second position to the third position, and subsequently, in the fourth position, the hole 101 is punched laterally by the second die 40. The first displacement mechanism 31 simultaneously grabs the current product 11 and the previous product 12 and synchronously translates until the previous product 12 is in the third position, and at the same time, the current product 11 is just in the second position. Then, the first shift mechanism 31 releases the current product 11 and the previous product 12 by being lifted to be disengaged from the current product 11 and the previous product 12. When the previous product 12 is translated along the second position of the second displacement mechanism 32 to a third position outside the second displacement mechanism 32, it can naturally fall down from the first displacement mechanism 31 by its own weight and be released and collected.

The second displacement mechanism 32 is used to move the previous product 12, which is already in the second position, to a fourth position below by lowering when the first displacement mechanism 31 starts to ascend, i.e. is ready to grasp the current product 11, so that the second die 40, which is correspondingly located at the fourth position, punches a hole from the side of the previous product 12. And in the process of ascending and translating the first shifting mechanism 31, before the first shifting mechanism 31 descends, the former product 12 which is laterally punched at the fourth position is moved back to the second position by ascending, and the first shifting mechanism 31 is waited to synchronously grab and translate the current product 11 and the former product 12.

Thereafter, when the previous product 12 has been translated along the second position of the second displacement mechanism 32 to a third position located outside the second displacement mechanism 32 and dropped by its own weight from the first displacement mechanism 31, the previous product 11 is also located exactly in the second position. At this point, the first displacement mechanism 31 starts to rise again, i.e. is ready to grasp a product following the current product 11. The second shifting mechanism 32 uses the interval time to move the current product 11, which is already at the second position, to the fourth position below by descending, the second die 40 performs lateral punching on the current product 11, and moves the current product 11, which is laterally punched at the fourth position, back to the second position by ascending before the first shifting mechanism 31 descends, and waits for the first shifting mechanism 31 to synchronously grab and translate the next product and the current product 11. The reciprocating circular operation is carried out in this way, and the continuous production of the product, such as continuous punch forming, anisotropic displacement and lateral punching, is formed.

The former product 12, the current product 11 and the latter product belong to a sequential forming relationship on the first die 20 and a sequential punching relationship on the second die 40.

Please refer to fig. 4. The detection unit 33 is provided on the second displacement mechanism 32 for detecting whether the current product 11 (or the previous product 12, i.e. each product 10 moved to the second position) is in motion and is accurately moved to the second position.

The control unit is used for judging that the current product 11 is moving from the first position to the second position according to a first feedback signal sent by the detection unit 33 when the first shifting mechanism 31 translates the grabbed current product 11 and the previous product 12, and judging that the current product 11 has moved to the moving-to-position at the second position according to a second feedback signal sent by the detection unit 33.

Please refer to fig. 2 and fig. 3. In a preferred embodiment, the first displacement mechanism 31 may include an elevator sub-mechanism and a translation sub-mechanism provided on an elevator moving portion of the elevator sub-mechanism. The translation sub-mechanism can be provided with a translation moving part, and a first grabbing unit and a second grabbing unit are sequentially arranged on the translation moving part along the translation direction; the first and second gripping units are used for gripping a current product 11 and a previous product 12, respectively (i.e. one product 10 located in a first position and another product 10 located in a second position), or for releasing one product 10 located in a second position (e.g. the current product 11) and another product 10 located in a third position (e.g. the previous product 12).

In a preferred embodiment, the elevator mechanism may include an elevator cylinder 311; the elevation cylinder 311 is provided with an elevation cylinder lever 3111, and the elevation cylinder lever 3111 serves as an elevation movement unit. But is not limited thereto.

In a preferred embodiment, the translation sub-mechanism may include a translation cylinder 312; the translation cylinder 312 is provided with a translation cylinder rod 3121, and the translation cylinder rod 3121 serves as a translation moving portion. But is not limited thereto.

In a preferred embodiment, the front end of the translational motion part is provided with an arm 313, and the first and second grasping units may include grasping rods respectively provided on the lower ends of the arm 313. When, for example, the products of fig. 1 (the front product 11, the rear product, the front product 12, and the like) have openings on the upper ends thereof, the first grip unit may include a first grip bar 314 longitudinally provided on the lower end of the arm 313, and the second grip unit may include a second grip bar 315 longitudinally provided on the lower end of the arm 313. The relative distance between the first and second

gripping levers

314 and 315, and the absolute position thereof on the lower end of the arm 313, can be determined according to the movement positioning position of the first displacement mechanism 31 and the distance between the first position and the second position (or the distance between the second position and the third position).

The first and second catching levers 314 and 315 are configured to simultaneously extend into openings of the current product 11 and the previous product 12, respectively, when the lift cylinder lever 3111 is lowered, and to laterally hook the current product 11 and the previous product 12 while being translated with the translation cylinder lever 3121, thereby catching and controlling the current product 11 and the previous product 12; the first and second catching levers 314 and 315 are simultaneously used to lift the lift cylinder lever 3111 while translating the caught current and

previous products

11 and 12 with the translating cylinder lever 3121 to the second and third positions, respectively, to disengage the first and second catching levers 314 and 315 from the openings on the current and

previous products

11 and 12, thereby releasing the current and

previous products

11 and 12. When the product collection mechanism is disposed below the third position, the previous product 12 is automatically disengaged from the second grasping bar 315 and falls off at the third position.

Please refer to fig. 2 and fig. 4-5 (which show a partial structure of the second displacement mechanism 32). In a preferred embodiment, the second displacement mechanism 32 may include a lifting platform 321. The lifting platform 321 is used for switching the up-down position between the second position and the fourth position of the products 10 (such as the previous product 12, and the subsequent current product 11, the subsequent product, etc.) on the surface of the lifting platform 321 through lifting, so that the products 10 which are formed and moved from the first position to the second position are continuously moved down to the fourth position to receive the side punching, and are returned to the second position after punching, and are further moved to the third position for collection.

When the first displacement mechanism 31 moves the current product 11 from the first position to the second position and simultaneously moves the previous product 12 from the second position to the third position, the product can slide and translate to the set position along the upper surface of the lifting platform 321 through the hooking cooperation between the first grabbing rod 314 and the second grabbing rod 315 and the product and the interference cooperation between the brim of the product and the upper surface of the lifting platform 321.

In a preferred embodiment, the lifting platform 321 can be controlled to lift by another cylinder. But is not limited thereto.

In a preferred embodiment, the detecting unit 33 may include a first sensor 331, a second sensor 332 and a third sensor 333 disposed on the elevating platform 321. Wherein, the first sensor 331 is used for detecting the movement of the current product 11 and generating a first feedback signal when triggered; the second sensor 332 and the third sensor 333 are used to detect the movement of the current product 11 into position and generate a second feedback signal when triggered simultaneously.

For example, when the first shifting mechanism 31 carries the current product 11 to shift to the second position, it should be sensed by the first sensor 331 and trigger the generation of the first feedback signal under normal circumstances. At this time, the control unit can control and maintain the continuous work of the mold according to the acquired first feedback signal. Conversely, if the first displacement mechanism 31 does not normally catch the current product 11, or if the product deviates from the direction or even disengages during the translation, it cannot be sensed by the first sensor 331, i.e. it does not trigger the generation of the first feedback signal. The control unit controls the mold to stop because the first shifting mechanism 31 is in the contraction movement beat (i.e., in the process of translating to the third position) but does not synchronously acquire the first feedback signal, thereby protecting the mold.

For another example, when the first displacement mechanism 31 carries the current product 11 to translate to the second position (the position shown where the previous product 12 is located), it should normally be sensed by both the second sensor 332 and the third sensor 333, and thus trigger the generation of the second feedback signal. At this time, the control unit can control the continuous work of the holding die according to the acquired second feedback signal. On the contrary, if the first displacement mechanism 31 is in the contraction movement beat and in the state where the translation to the third position direction is terminated, the second sensor 332 and the third sensor 333 do not sense the product at the same time, that is, do not trigger the generation of the second feedback signal. The control unit controls the mold to stop because the first shifting mechanism 31 is in the moving beat of the product to be carried but does not synchronously acquire the second feedback signal, thereby playing the role of protecting the mold.

In a preferred embodiment, the first sensor 331, the second sensor 332, and the third sensor 333 may include proximity switches, but are not limited thereto. For example, the first sensor 331 may include a first proximity switch disposed at a position below the surface of the lifting platform 321, the second sensor 332 may include a second proximity switch disposed at a position below the surface of the lifting platform 321, and the third sensor 333 may include a third proximity switch disposed at a position below the surface of the lifting platform 321.

In a preferred embodiment, the first proximity switch may be disposed on a moving path of the products 10 (the current product 11 and the previous product 12) when moving on the lifting platform 321, and at a position on one side of the products 10 when moving. For example, the first proximity switch may be disposed at a position below the surface of the lifting platform 321, which is capable of sensing the passing of the brim on one side of the product 10, and may be always in a triggered state and continuously send out the first feedback signal in the process that the product 10 passes through. And when the product 10 moves to the in-place position of the second position, the first proximity switch is positioned behind the visor on one side of the product 10.

Further, the second proximity switch and the third proximity switch may be provided on a moving path of the product 10 while moving on the lifting platform 321, and respectively located at opposite side positions of the product 10 while moving. For example, the second proximity switch may be located below the surface of the lifting platform 321 that is capable of sensing the passage of the illustrated left visor of the product 10, and when the product 10 is moved to the second position, the rear edge of the illustrated left visor of the product 10 is in a position that still maintains the second proximity switch activated. Meanwhile, the third proximity switch may be disposed at a position below the surface of the lifting platform 321 where the right-side visor of the product 10 can be sensed to pass through, and when the product 10 is moved to the in-place position of the second position, the front edge of the right-side visor of the product 10 is in a state of being just capable of triggering the third proximity switch. Namely, the second proximity switch and the third proximity switch play a role in limiting the product 10 in the front and back position when moving to the target position, and the second proximity switch and the third proximity switch trigger simultaneously to generate a second feedback signal together, so that the accuracy of the product 10 in the target position is ensured.

In an alternative embodiment, a first proximity switch may be positioned adjacent to a second proximity switch such that when the product 10 is moved to the second position, the rear edge of the illustrated left visor of the product 10 is in a condition to maintain simultaneous activation of the second proximity switch and the first proximity switch. At this time, the first proximity switch, the second proximity switch and the third proximity switch are triggered simultaneously, and the first proximity switch, the second proximity switch and the third proximity switch generate a second feedback signal together, so that the control precision of the product 10 moving in place is further improved. That is, in the present embodiment, the first sensor 331, the second sensor 332 and the third sensor 333 are used for detecting that the current product 11 (product 10) is moved to the right position at the same time, and the second feedback signal is generated when the first sensor, the second sensor and the third sensor are triggered at the same time.

Please refer to fig. 4-5. In a preferred embodiment, the lifting platform 321 can be two parallel lifting platforms 321, an escape passage is formed between the two parallel lifting platforms 321, and the product 10 contacts with both sides of the product to move horizontally on the two parallel lifting platforms 321. After the two parallel lifting platforms 321 descend, the product 10 is just located on the punching station of the second die, that is, on the fourth position, by using the avoiding channel between the two parallel lifting platforms 321.

In a preferred embodiment, a guide structure may be further provided on the surface of the lifting platform 321 for guiding the current product 11 and the previous product 12 translated on the surface of the lifting platform 321. For example, the guide structure may be a parallel sliding groove separately disposed on the two parallel lifting platforms 321 and located on two sides of the brim of the product 10, and may perform sliding translation guide on the widest positions on two sides of the brim of the product 10, thereby ensuring the precision of the product 10 when moving.

In a preferred embodiment, the control unit may be a controller, such as a PLC controller.

In an alternative embodiment, when the first mold 20 is a two-product simultaneous molding design, the second mold 40 is configured in two and is arranged on both sides of the last step of the first mold 20. Two counter-displacement and protection devices 30 in the stamping die are correspondingly arranged on two sides of the last process of the first die 20, and synchronous grabbing, translation, lifting and other work aiming at one product 10 on the corresponding side is carried out between the first die 20 and the two second dies 40. Can be understood by reference to the above description and will not be described in detail.

Please refer to fig. 3 (which shows a partial structure of the first shifting mechanism 31). The operation of the first displacement mechanism 31 of the present invention will be described in detail.

On the illustrated strip 1, a product 10 located on the right side of the end of the strip 1 is shown as the current product 11, which is in the first position, a product 10 located outside the current product 11 is shown as the previous product 12, which is in the second position, and the working steps of a first displacement mechanism 31 on the corresponding side are described.

A first step, in which the current product 11 is cut by the first mold 20 and separated from the strip 1 to be located at the last step of the first mold 20, that is, at the first position; the previous product 12 is located directly on the lifting platform 321 of the second displacement mechanism 32, i.e. in the second position. The first shifting mechanism 31 ascends through the lifting cylinder 311, the translation cylinder 312 extends, the lifting cylinder 311 descends, and the current product 11 and the previous product 12 are already fallen above, and the first grabbing rod 314 and the second grabbing rod 315 on the translation cylinder 312 grab the current product 11 and the previous product 12 at the same time, and through contraction of the translation cylinder 312, the previous product 12 with side holes is moved to the third position to automatically fall and be collected, and meanwhile, the current product 11 is shifted to the second position which is left empty to wait for hole punching.

In the second step, the lift cylinder 311 is required to move up to bypass the product below for the next step. At the same time, the lifting platform 321 of the second shifting mechanism 32 starts to descend, so as to move the placed current product 11 to the fourth position below, i.e. on the punching process of the second mold 40, and the second mold 40 punches the through hole 101 on the side of the current product 11. If the through-hole 101 is punched on both the front and rear sides of the product, a second die 40 having two punches may be provided correspondingly.

In a third step, the translation cylinder 312 is now extended, ready to be lowered for the next step of hooking the product (the latter). The current product 11 at the fourth position is punched with the through hole 101 on the side surface, and the lifting platform 321 is lifted to return to the second position, waits to be hooked with the latter product, and is transferred to the third position.

And a fourth step, in which the lifting cylinder 311 descends to hook the next product located at the first position together with the current product 11 located at the second position.

Then, returning to the first step, the translation cylinder 312 contracts to translate the next product and the current product 11 to the second position and the third position along the lifting platform 321, so that the current product 11 naturally falls and is collected, and the next product is sent to the fourth position by the lifting platform 321 to be subjected to side punching. The continuous production is carried out in a circulating and reciprocating way.

In the above working steps, the combination of the first proximity switch, the second proximity switch and the third proximity switch arranged on the lifting platform 321 and the triggering under different conditions are utilized to generate the corresponding first feedback signal and the second feedback signal, and the continuous production is effectively ensured and the safety of the mold is ensured through the control of the controller.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that the changes and modifications of the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides a heterodromous shifts and protection device in stamping die which characterized in that includes:

2. The counter-directional shift and protection device in the stamping die according to claim 1, wherein the first shift mechanism comprises an elevator sub-mechanism and a translation sub-mechanism arranged on an elevating movement part of the elevator sub-mechanism; the translation sub-mechanism is provided with a translation movement part, and the translation movement part is sequentially provided with a first grabbing unit and a second grabbing unit which are respectively used for grabbing the current product and the previous product.

3. The device for anisotropic displacement and protection in a stamping die according to claim 2, wherein the lifting sub-mechanism comprises a lifting cylinder, the lifting cylinder is provided with a lifting cylinder rod, and the lifting cylinder rod is the lifting motion part; the translation sub-mechanism comprises a translation cylinder, the translation cylinder is provided with a translation cylinder rod, and the translation cylinder rod is the translation motion part.

4. The apparatus as claimed in claim 2, wherein the current product and the previous product have openings at upper ends thereof, the first grabbing unit and the second grabbing unit respectively comprise grabbing bars longitudinally corresponding to the translational moving portion, the grabbing bars are configured to respectively extend into the openings of the current product and the previous product when the lifting moving portion descends, and to laterally hook the current product and the previous product for grabbing when the grabbing bars are translated with the translational moving portion, and to be separated from the current product and the previous product for releasing when the grabbing bars are translated to the second position and the third position respectively as the lifting moving portion ascends.

5. The apparatus as claimed in claim 1, wherein the second displacement mechanism comprises a lifting platform for switching the position of the former product on the surface of the lifting platform between the second position and the fourth position by lifting.

6. The device for the anisotropic displacement and the protection in the stamping die according to claim 5, wherein the detection unit comprises a first sensor, a second sensor and a third sensor which are arranged on the lifting platform, the first sensor is used for detecting the movement of the current product and generating the first feedback signal when triggered, and the second sensor and the third sensor are used for detecting the movement of the current product in place and generating the second feedback signal when simultaneously triggered.

7. The apparatus of claim 6, wherein the first displacement mechanism is in a state of translating in the direction of the third position, and the control unit does not obtain the first feedback signal, and a shutdown is triggered.

8. The apparatus according to claim 6, wherein when the first shift mechanism is in a state where the translation in the direction of the third position is terminated and the control unit does not acquire the second feedback signal, a stop is triggered.

9. The apparatus as claimed in claim 5, wherein a guiding structure is disposed on a surface of the lifting platform for guiding the current product and the previous product translated on the surface of the lifting platform.

10. The apparatus of claim 6, wherein the first, second and third sensors comprise first, second and third proximity switches disposed at a location below a surface of the lift platform.